Liquid composition with dihydroxy terephthalic acid diamide compound and high amount of surfactant

摘要

Catechol compounds of the formula (I) in which R a, independently of one another, stand for a hydrocarbon radical having at least 3 carbon atoms, can be easily and stably incorporated into liquid compositions with a surfactant content of 20 to 70% by weight. Concentrated liquid surfactant compositions are obtained which are stable in storage and have excellent detergency.